index medical definition

1. A guide, standard, indicator, symbol, or number indicating the relation of one part or thing to another in respect to size, capacity, or function.
2. A core or mold used to record or maintain the relative position of a tooth or teeth to one another or to a cast.
3. A guide, usually made of plaster, used to reposition teeth, casts, or parts.
4. The index finger.

Related Forms:

• index verb